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| Number | Title | Issue Date |
| 7451700 | Detonator system having linear actuator Disclosed is a detonation initiator that can form part of a demolition assembly. The detonation initiator can include a linear actuator assembly having a core with a permanent magnet disposed with respect to a coil, and a firing pin coupled to the core and disposed ... | 11/18/2008 |
| 7367584 | Gas generating system A gas generator (10) includes an igniter (27) and first and second inflation gas generant compositions (52, 52′) positioned to enable fluid communication with the igniter (27) upon activation of the igniter. Flow regulators (54, 54 | 05/06/2008 |
| 7364190 | Igniter for air bag system A method of manufacturing a gas generator for an airbag having an igniter includes the steps of: providing, in the igniter, an integrated circuit including a memory unit for activating the igniter upon receipt of an external signal; attaching the igniter to a gas ge... | 04/29/2008 |
| 7347145 | Dynamic baselining in current modulation-based communication Dynamic baselining of current modulation-based talkback from a slave device to a master device in a system such as an electronic blasting system, wherein the dynamic baselining enhances communication integrity under conditions of environmental noise and the like. Wi... | 03/25/2008 |
| 7337723 | Detonator arming A detonator which, once armed, is automatically disarmed after a predetermined time period in the absence of at least one defined signal during such time period. ... | 03/04/2008 |
| 7334523 | Fuze with electronic sterilization A fuze may include a detonator, a firing capacitor and a control circuit. The firing capacitor may be charged to a nominal operational voltage, wherein when the firing capacitor is discharged across the detonator, an external explosive charge may be detonated. The f... | 02/26/2008 |
| 7328657 | Tubular igniter bridge This invention relates to a solid-state or integrated circuit-type igniter die (10) having a bridge (18) that is formed on a non-planar surface of a substrate (12), and which therefore has a non-planar configuration. Igniter die (10), acc... | 02/12/2008 |
| 7322293 | Device and system for identifying an unknow or unmarked slave device such as in an electronic blasting system A system such as an electronic blasting system, and a slave device for use in the system, in which a command is issued by a master device to all slave devices connected to the system, causing all slave devices that have not been identified to the master device to re... | 01/29/2008 |
| 7275760 | Multi-chamber gas generating system A multi-chamber gas generating system (10) has a housing (12) with openings (24) formed in a wall thereof. A gas-tight internal divider (42) separates the housing into two chambers (80, 80′). A first gas generating sub-assembly (... | 10/02/2007 |
| 7270044 | Plasma firing mechanism and method for firing ammunition The invention comprises a device and method for firing firearm ammunition using a plasma torch generator. In a particular embodiment, the device relates to the control or management of the rate of fire and number of rounds fired in a burst firing mode for automatic ... | 09/18/2007 |
| 7267365 | Inflator An inflator for a vehicle occupant restraint system. The inflator includes a cylindrical outer wall having a longitudinal axis and a first opening formed therealong for enabling fluid communication between an interior of the inflator and an exterior of the inflator.... | 09/11/2007 |
| 7237801 | Gas generating system A gas generating system (10) includes a tubular outer housing (12) having a longitudinal axis (L) and one or more apertures (12d) formed therealong to enable fluid communication between an interior of the outer housing and an exterior of ... | 07/03/2007 |
| 7230814 | Digital squib An intelligent switch system, a so-called squib, for providing power to sensitive equipment, such as missiles, rockets and the like, comprises a pair of serially connected power switches which are separately and sequentially enabled and which will not deliver power ... | 06/12/2007 |
| 7213518 | Modular electronic fuze A modular fuze assembly is provided for use in multiple types of military ordnance. The fuze comprises a base unit having an initiator for arming the fuze; a timer assembly that includes a programmable clock package; a trigger assembly comprising a line monitoring c... | 05/08/2007 |
| 7194959 | Precision pyrotechnic display system and method having increased safety and timing accuracy A system and method are disclosed for controlling the launch and burst of pyrotechnic projectiles in a pyrotechnic, or “fireworks”, display. ... | 03/27/2007 |
| 7191706 | Optically triggered fire set/detonator system The present invention is directed to a system having a plurality of capacitor discharge units (CDUs) that includes electrical bridge type detonators operatively coupled to respective explosives. A pulse charging circuit is adapted to provide a voltage for each respe... | 03/20/2007 |
| 7168737 | Integrated circuit for air bag system An integrated circuit for an air bag system is used in an air bag system having an ECU and a module case connected to the ECU and accommodating a gas generator and an air bag. In the air bag system, two bus lines passing through the ECU are provided to supply curren... | 01/30/2007 |
| 7155353 | Method for determining charging capacitance of capacitor A method of determining a charging capacitance of a capacitor in an air bag system having an electronic control unit for controlling a gas generator, a bus line having a loop wire extending from the electronic control unit, gas generators connected to the loop wire,... | 12/26/2006 |
| 7146912 | Flexible detonator system An electronic detonator system includes a control unit, a plurality of electronic detonators and a bus which connects the detonators to the control unit. Each electronic detonator includes a number of flags which may assume either of two possible values, each flag i... | 12/12/2006 |
| 7116543 | Apparatus for supplying electric energy to explosion cartridge An electric power supplying apparatus for a rock explosion cartridge is disclosed. The apparatus includes the following elements. A power source generates an electric energy. A plurality of channels consist of capacitors for storing an electric energy from the power... | 10/03/2006 |
| 7107908 | Firing-readiness diagnostic of a pyrotechnic device such as an electronic detonator Firing-readiness diagnostics in an electronic pyrotechnic device such as an electronic detonator or an electronic blasting system thereof. The diagnostics may include a check for any incompatible attached devices, a resistance or continuity check of an ignition elem... | 09/19/2006 |
| 7109888 | Method and apparatus for detecting and destroying intruders A method and apparatus employing an array of spaced detectors and a detection circuit to detect disturbance of first and second conductors and provide signals to a computer system to determine both the presence of the intruder and the direction of travel of the intr... | 09/19/2006 |
| 7100511 | Dual redundancy system for electronic detonators A detonator assembly (10) comprising a housing (12) disclosed and claimed. The assembly comprises an main circuit (11) comprising an electrically operable fuse (16) located in the housing. The assembly further comprises at least a first r... | 09/05/2006 |
| 7086334 | Staggered charging of slave devices such as in an electronic blasting system Selective, staggered charging of individual slave devices in a system at different times, such as electronic detonators in an electronic blasting system, so as to prevent excessive voltage drop on the bus. The staggered charging may be obtained through a clock-drive... | 08/08/2006 |
| 7082877 | Current modulation-based communication for slave device Current modulation-based talkback in a system in which the background noise in the level of current draw is minimized such that the talkback is effected with a desirably high signal-to-noise ratio, such as by the master device holding the system voltage low such tha... | 08/01/2006 |
| 7069860 | Igniter for air bag system A method of activating at least one electrical igniter incorporated in each of a plurality of gas generators provided in an air bag system is provided. The method includes: connecting an electronic control unit to a power source and an impact detecting sensor; provi... | 07/04/2006 |
| 7055435 | Spacecraft ordnance system and method for self-test An improved spacecraft ordnance system includes a plurality of squibs each connected with a resistor having a squib unique resistance value and a driver unit including built-in test circuitry. Ordnance harness cables connect the squibs with the driver unit. The resi... | 06/06/2006 |
| 7021218 | Safety and performance enhancement circuit for primary explosive detonators A safety and performance enhancement arrangement for primary explosive detonators. This arrangement involves a circuit containing an energy storage capacitor and preset self-trigger to protect the primary explosive detonator from electrostatic discharge (ESD). The c... | 04/04/2006 |
| 7017494 | Method of identifying an unknown or unmarked slave device such as in an electronic blasting system A system, for example an electronic blasting system, in which a command is issued by a master device to all slave devices connected to the system, causing all slave devices that have not been identified to the master device to respond with identifying information an... | 03/28/2006 |
| 7013807 | Current modulation-based communication for slave device Current modulation-based talkback in a system in which the background noise in the level of current draw is minimized such that the talkback is effected with a desirably high signal-to-noise ratio, such as by the master device holding the system voltage low such tha... | 03/21/2006 |
| 6966262 | Current modulation-based communication from slave device Current modulation-based talkback in a system in which the background noise in the level of current draw is minimized such that the talkback is effected with a desirably high signal-to-noise ratio, such as by the master device holding the system voltage low such tha... | 11/22/2005 |
| 6963262 | Reduction of capacitance effects in potential transformers A transformer includes a first winding and a second winding coupled to the first winding through a magnetic circuit so that current through the first winding induces a voltage across the second winding. The first winding includes n separate shield portions, where n ... | 11/08/2005 |
| 6837163 | Flexible detonator system An electronic detonator system includes a control unit, a plurality of electronic detonators and a bus which connects the detonators to the control unit. Each electronic detonator includes a number of flags which may assume either of two possible values, each flag i... | 01/04/2005 |
| 6820557 | Igniter for air bag system The present invention provides an igniter for an air bag system in which the whole weight can be reduced. The present invention provides an igniter for an air bag system which is used in an air bag system comprising an ECU connected to a power source and an i... | 11/23/2004 |
| 6789483 | Detonator utilizing selection of logger mode or blaster mode based on sensed voltages An electronic blasting system in which the electronic detonator, when attached to a blasting machine or logger, automatically senses and determines whether it is attached to a blasting machine or a logger, preferably by utilizing a different operating voltage for th... | 09/14/2004 |
| 6759798 | Structure of capsule for rapidly expanding metallic mixture A structure of a capsule for a rapidly expanding metallic mixture includes one or more trigger electrode support rods arranged between the main trigger electrodes such that the trigger electrode support rods are linearly aligned with the main trigger electrodes, wit... | 07/06/2004 |
| 6718881 | Ordnance control and initiation system and related method An ordnance control and initiation system is provided. The system includes a plurality of ordnance devices which may be segregated into a plurality of sets. Each set of the ordnance devices has at least one ordnance device and further includes an ordnance device int... | 04/13/2004 |
| 6675715 | Electronic projectile fuse A device supplies electric energy for projectile detonators without a battery or additional energy generation during flight of the projectile. For operating the projectile detonator in the flight phase, a supply capacitor charged during an inductive progr... | 01/13/2004 |
| 6647886 | Vehicle system A safety system for a motor vehicle includes a plurality of safety devices each adapted to be activated in the event that an accident should occur. Each safety device includes at least one element selected from the group comprising an electric activator f... | 11/18/2003 |
| 6637339 | Method for exchanging data between a device for programming and triggering electronic detonators and said detonators Effects of capacitive resistances on the transmission of data between electronic igniters of an ignition system and a device for programming and triggering igniters are avoided by the disclosed method. Prior to a planned communication of an igniter with t... | 10/28/2003 |
